Re: Slides with Org

[Rick Moynihan <rick@calicojack.co.uk>]

Sebastian Rose wrote:
> Hi,
> 
> 
> Rick asked for Slides from Org-modes HTML export recently.
> While there is no real support slides in org-info.js, I
> still gave it try to have a poor mans slides.
> 
> The main missing thing was the ability to navigate the
> section by clicking the window. This is now added and in
> the worg git.
> 
> Please review and complain :-)

Before my 'complaints':  Thanks a bunch, this is great!!! :-)  The 
org-mode continue to amaze me!

So, after taking a look at your example the first thing that jumps out 
at me is the hack you've used to reveal individual bullet points one by one:

* Overview

   + Create the Org-mode file

* Overview

   + Create the Org-mode file
   + Export the Org-mode file to XHTML

* Overview

   + Create the Org-mode file
   + Export the Org-mode file to XHTML
   + Create a stylesheet for slides

Whilst this works, it doesn't seem entirely practical to duplicate the 
content like this, particularly in a larger slide stack.  Could we use 
properties to control this?  Reducing the previous outline to something 
like this:

* Overview
   :PROPERTIES:
   :reveal:   t
   :END:

   + Create the Org-mode file
   + Export the Org-mode file to XHTML
   + Create a stylesheet for slides

Another suggestion, would be to offer more control over the title 
heading.  Currently it seems that the heading is always the #+TITLE: 
rather than the current slides heading.  A more sensible default would 
be to render the slides title here, with an option to have it be the 
presentations title.

It also seems that the double-clicking/sensitivity when returning to a 
previous slide sometimes feels hard to perform.  i.e. sometimes you 
click too slow and progress forward rather than back.  This may or may 
not be something you have control over.  As other's have suggested, 
supporting the back/forward keys and spacebar for flicking through 
slides would be nice too.

Another feature suggestion might be support for automated timings. 
Where after loading a presentation pushing a button sets it off with 
each slide being displayed for a specified time, according to an 
overidable default (in seconds) e.g.

#+INFOJS_OPT: timing:30

With overiding supported through property drawers:

* Example of timings (whole slide takes 20 seconds)
   :PROPERTIES:
   :timing: 20
   :reveal: t
   :END:

   + Wait on this point for 10 seconds
   + Wait on this point for 10 seconds then push onto next slide

Finally, if possible, perhaps a class property could be used to control 
which CSS class a slide is rendered with?  This might allow better 
control over certain slides where, for example you *ONLY* want a large 
image to be displayed centred without a title etc...

As an aside, would it be possible to push org-info-js up into it's own 
git repo, with the slides example you posted?  Checking it out through 
Worg is a mild pain, and it seems deserving of it's own repo.

> For REAL slides a different tool should be written (using jQuery
> or similar). Since slides are so different from 'normal' HTML, I
> guess they would blow the scripts size. If I think of slides, I
> think of efects.

Yes, effects and transitions would be a nice bonus and should be 
achievable through libraries like scriptaculous and jquery...

Thanks again for your hardwork!

R.